Terms of service
Last updated: October 13, 2026
This page applies to Speaker Cleaner. Contact: support@northstarbyte.com
1. Provider and scope
Speaker Cleaner is provided by HK NORTHSTAR DIGITAL LIMITED (“we”, “us”). These Terms govern the App and this website. Read these Terms and the Privacy Policy before using the service, and the Subscription Terms if you purchase a subscription. You must have the capacity required by applicable law. Minors should use the service with a parent or guardian, who must approve purchases where required by law.
2. Features and licence
The App offers cleaning sounds, tone generation, estimated ambient sound levels, recordings and records, sound-level snapshots, report export and stereo tests. Reminders and Siri shortcuts depend on your device, operating system and App version. Subject to these Terms, we grant you a limited, non-exclusive, non-transferable licence to use the App for lawful personal purposes. Features, languages and compatibility depend on the released version.
3. Safe use
Follow device-manufacturer and in-app instructions. Before cleaning, disconnect headphones and external audio devices, keep speaker openings clear, use a suitable volume and keep the speaker away from your ears. Stop immediately if discomfort, unusual heat, abnormal sound or device problems occur. Do not operate the App while driving or doing activities that require attention. Seek professional service for liquid damage or hardware faults rather than delaying repairs in reliance on the App.
4. Results and measurement limits
Cleaning results vary by device and condition. Sound playback does not guarantee water ejection, dust removal, restored volume or hardware repair, and cannot remove all liquid inside a device. Sound-level readings are estimates affected by the microphone, environment and calibration. They are not professional sound-meter results and are not for medical diagnosis, hearing assessment, occupational safety or regulatory certification. Tone and stereo tests do not replace professional inspection. Website screenshots and illustrations are not live measurements or promises of results.
5. Permissions, content and backups
Microphone, camera, photo-add and notification permissions support their corresponding features and can be managed in system settings. Obtain necessary authorisation and comply with local law and others’ privacy rights before recording, photographing or sharing. You retain rights in your content. When contacting support by email and providing materials, you authorise us to use them only to handle your request and resolve the issue. Back up important records; uninstalling, clearing data, system changes or device failure may cause loss.
6. Acceptable use and intellectual property
Do not infringe others’ rights, record unlawfully, distribute unlawful content, disrupt the service or bypass payment or security mechanisms. Except where permitted by law, do not copy, resell, modify or reverse-engineer the App. Rights in the App, website, trademarks, interface and related materials belong to us or their respective owners. These Terms do not transfer those rights or restrict uses permitted by law.
7. Payments and third-party services
If paid features or subscriptions are offered, prices, periods, benefits and conditions will be displayed before purchase; see the Subscription Terms. These Terms do not mean that any particular subscription is currently available or promise permanent free access. Apple, email, system sharing and external services you choose are governed by their own terms and privacy policies. See our Privacy Policy for personal-information handling.
8. Changes and termination
We may change, suspend or discontinue services for maintenance, compatibility, security or legal reasons, with notice where appropriate or legally required. You may stop using the service at any time. We may lawfully restrict use involving unlawful conduct, serious breaches of these Terms or threats to service security, with notice and a contact channel where appropriate. Purchased benefits remain subject to purchase conditions, the Subscription Terms and applicable law. Stopping use or uninstalling does not automatically cancel a subscription.
9. Liability and consumer rights
To the extent permitted by applicable law, the service is provided as available, without a guarantee of uninterrupted or error-free operation or a particular cleaning result. Liability is determined under applicable law. These Terms do not exclude or limit liabilities, statutory guarantees, refund rights or other consumer rights that cannot lawfully be excluded or limited.
10. Disputes, updates and contact
Please contact support first so we can try to resolve a dispute. This does not limit your right to seek relief from competent authorities or courts. These Terms impose no exclusive jurisdiction and do not remove mandatory protections applicable where you live. Updates will show a revised date on this page. Material changes will receive appropriate notice, and consent where required by law. Invalid provisions do not affect the lawful validity of the remaining provisions. Contact: support@northstarbyte.com.